Window ventilator



March 19, 1940. w. HAUGH 2,194,388

WINDOW VENTILATOR Filed Dec. 31, 1957 2 Sheets-Sheet 1 March 19, 1940.w, HAUGH 2,194,388

WINDOW VENTILATOR Filed Dec. 51, 1957 2 Sheets-Sheet 2 mama Mar. 19,1940 UNITED STATES mess:

PATENT OFFICE,

WINDOW VENTILATOR Walter Haugh, West Palm Beach, Fla. ApplicationDecember 31, 1937, Serial No. 182,877 1 Claim. (Cl. 98-121) Thisinvention relates to a window ventilator. and it is one object of theinvention to provide a ventilator of such construction that, when it isset in place in a window frame between a sash and an upper or lowerportion of the window frame, it will be very firmly held in place andprevented from slipping out of its proper position between the trackforming strips or working loose and rattling.

Another object of the invention is to provide a ventilator consisting ofextensible strips or baffles having their outer ends firmly connectedwith vertically extending end bars of such formation that the extensiblestrips will be firmly braced and prevented from being bent out of shapeduring adjusting of the ventilator.

Another object of the invention is to so connect the extensible stripswith the end bars that they will be very firmly secured andpreventedfrom working loose or moving out of their proper angular disposition.

Another object of the invention is to so form the ventilator that allportions thereofmay be formed from strong sheet metal and very easily :5assembled, thus producing a ventilator which may be cheaply manufacturedand sold at a reasonable price.

The invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a front elevation of the improved ventilator,

Figure 2 is a top plan view of the ventilator showing the same appliedto a window indicated by dotted lines,

3 is a sectional view taken vertically through the ventilator along theline 3-3 of Figure 1,-

Figure-4'15 a view looking at one end of the ventilator,

Figure 5 is a fragmentary sectional view through one end of theventilator, the view being taken along the line 5-5 of Figure 4,

Figure 6 is a fragmentary sectional view taken vertically through aventilator of a modified con- 45 struction, and

Figure 7 is a view of the blank from which one of the extensible stripsof formed.

This improved ventilator consists briefly of 50 end bars I and a.plurality of baflies 2 which extend between the side bars I and areextensible in order that the ventilator may beadjusted and accommodateitself to the width ofthe window in which it is applied. Each side baris formed 55 from channeled metal to provide side flanges 3.

the ventilator is In view of the fact that each side bar is formed withside flanges, the bars will be braced and prevented from bending out ofshape when subjected to strain during adjustment of the ventilator or bypressure exerted when the ventilator 5 is in place in a window frame.

The bafiles may be flat incross section, as shown in Figure 3, or curvedas shown in Figure 6. Each of the baflles consists of companion strips 4which are stamped or otherwise cut from 10 sheet metal, as shown inFigure 7. Side arms or tongues 5 extend from opposite sides of innerends of the strips 4 and each strip has its side arms bent along thedotted line 6 so that they overlap the companion strip, as shown clearlyin 15 Figures 1, 2 and'3, and slidably hold the companion strips inengagement with each other. These side arms serve not only to slidablyconnect the companion strips but also constitute abutments for limitingmovement of the strips in 20 a direction to extend the ventilator. Itwill thus be seen that the companion strips may slide easily relative toeach other to extend or contract the ventilator but they cannot becomeentirely disengaged from each other. Atits outer end each strip isformed with a pair of tongues which are arranged as clearly shown inFigure 7.

.The tongues of each strip are passed through a slit 8 formed in acompanion end bar I and the companion tongues are then bent in oppositedirections along the dotted line 9 so that they have flat contactingengagement with the outer surface of the companion end bar. By havingthe companion tongues bent in opposite directionsagainst the end bar asshown in Figure 4, the 3;, tongues will be prevented from accidentallyslipping through the slits after they are bent to the clinched positionof Figure 4, and these strips will be prevented from becomingaccidentally disengaged from the end bars. I

When this improved ventilator is in use, it

may be installed either between a raised lower sash and the bottom of awindow frame or between a lowered upper sash and the top of the windowframe. Referring to Figure 2, it will be seen that the ventilator fitswithin the track 00- cupied by the window sash with which it coopfcrates and is of such dimensions that it will fit snugly between theparting bead l0 and the window stop II, as shown in this figure, orbetween the parting bead l0 and the blind stop i2. Therefore, theventilator will be maintained in an upright position, as shown in Figure3, with the beveled lower ends of the side bars resting upon the silland thebeveled upper ends ll of the side bars engaged by the under faceof the lower sash. Of course. if the ventilator is disposed between theupper sash and the top of the window frame, these beveled ends of theside bars will have contacting engagement with the top of the frame andthe upper edge face of the upper sash. By beveling the ends of the sidebars they conform to the bevel of the surfaces with which they contactand a close fit will be provided between the ventilator and the sash andwindow frame. The bafiies extend outwardly at an incline disposing thelower edge of each bafile in overlapping relation to the upper portionof a lower baflle, and therefore, rain and snow will be prevented fromentering a room through a ventilator while at the same time free inwardmovement of air will be permitted. This will also cause the air to bedeflected upwardly as it enters a room and persons in a room near awindow equipped with the ventilators will not be subjected to drafts. Byforming the ventilator of sheet metal of a non-rusting type it will-notbe damaged when subjected to the wetting effect of rain or snow. Thefact that the side bars are formed of channeled metal to provide themwith side flanges serves to greatly strengthen the side bars and alsobrace the bafiles.

Having thus described the invention, what is claimed as new is:

A ventilator comprising side bars formed of channeled material toprovide each bar with inwardly extending side flanges, and bafliesextending between the side bars and each consisting of companionsections slidably engaged with each other and each having its outer endformed with securing tongues, the side bars being formed with slits andthe tongues of the baffle sections being passed through the slits andthe tongues of each section bent in opposite directions against theouter face of the cooperating side bar.

WALER HAUGH.

